Classification-Index

Classification 2025 Winter Edition

Worldwide source of medical classification resources

Class Index

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Optical Illusions WW 105

Optical Imaging WN 195

Optical Microscopy See Microscopy

Optical Phenomena

General

QC 350 - QC 467

Optical Phenomenon See Optical Phenomena

Optical Process See Optical Phenomena

Optical Processes See Optical Phenomena

Optical Readers See Electronic Data Processing

Optical Rotatory Dispersion

Physical chemistry

QD 473

Optical Tomography See Tomography, Optical

Opticianry See Opticians

Opticians

As a profession

WW 21.7

Biography

Collective

WZ 112.5.A2

Individual

WZ 100

Optics and Photonics

General

QC 350 - QC 467

As a profession

QC 29

See also Optical Phenomena

Optimax See Tryptophan

Optimil See Methaqualone

Optimum Population See Population Dynamics

Optometrists

General

WW 21.7

Biography

Collective

WZ 112.5.O7

Individual

WZ 100

Optometry

General

WW 350

As a profession

WW 21.7

Or-pen See Penicillin G

Ora Serrata See Retina

Orabet See Tolbutamide

Oral Administration See Administration, Oral

Oral and Maxillofacial Pathology See Pathology, Oral

Oral and Maxillofacial Surgeons

General

WU 21

Biography

Collective

WZ 112.5.D3

Individual

WZ 100

Oral Cancer See Mouth Neoplasms

Oral Cavity See Mouth

Oral Cavity Proper See Mouth

Oral Cavity Squamous Cell Carcinoma See Squamous Cell Carcinoma of Head and Neck

Oral Character See Psychoanalytic Theory

Oral Contraceptive See Contraceptives, Oral

Oral Contraceptive Agents, Hormonal See Contraceptives, Oral, Hormonal

Oral Contraceptive Agents, Sequential See Contraceptives, Oral, Sequential

Oral Contraceptives See Contraceptives, Oral

Oral Contraceptives, Combined See Contraceptives, Oral, Combined

Oral Contraceptives, Hormonal See Contraceptives, Oral, Hormonal

Oral Contraceptives, Low-Dose See Contraceptives, Oral

Oral Contraceptives, Phasic See Contraceptives, Oral

Oral Contraceptives, Sequential See Contraceptives, Oral, Sequential

Oral Diagnosis See Diagnosis, Oral

Oral Drug Administration See Administration, Oral

Oral Dyskinesia See Dyskinesias

Oral Examination See Diagnosis, Oral

Oral Glucose Tolerance See Glucose Tolerance Test

Oral Glucose Tolerance Test See Glucose Tolerance Test

Oral Health

General

WU 113

Infant or child

WU 113.6

Nutritional aspects

WU 113.7